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| 型号： | MAX11040KGUU+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/35页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT 4CH 38-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 3.07M |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 4 |
| 功率耗散（最大）： | 1.1W |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-TFSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 38-TSSOP |
| 包装： | 管件 |
| 输入数目和类型： | 4 个差分，双极 |
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MAX11040K/MAX11060
24-/16-Bit, 4-Channel, Simultaneous-Sampling,
Cascadable, Sigma-Delta ADCs
13
Maxim Integrated
Digital Filter
The devices contain an on-chip digital lowpass filter
that processes the data stream from each modulator
and generates the high-resolution output data. The low-
pass filter frequency response is determined by the
programmable output data rate. At the nominal 16ksps
output data rate, the -3dB bandwidth of the filter is
3.4kHz. The passband flatness is better than ±0.1dB
from 0 to 1.74kHz. The notches are located at 5.75kHz
and 7.195kHz. These frequencies scale linearly with the
output data rate. See Figure 2 and Table 1 for the fre-
quency response at different data rates.
Since the transfer function of a digital filter is repeatable
and predictable, it is possible to correct for frequency-
dependent attenuation in downstream software. See
the
Compensating for the Rolloff of the Digital Filter in a
Typical FFT Analysis section. The transfer function is
defined by the following equation:
where:
Gain is the filter gain.
fAIN is the analog input frequency.
fSAMPLE is the programmed output data rate, nominally
16kHz.
fXINCLOCK is the clock frequency at XIN, nominally
24.576MHz.
FIR_Gain (fAIN) is the normalized gain of the FIR filter
with the following filter coefficients, as a function of the
analog input frequency fAIN. These coefficients are
applied at the output data rate:
+ 0.022
- 0.074
- 0.036
+ 0.312
+ 0.552
+ 0.312
- 0.036
- 0.074
+ 0.022
Gain f
f
AIN
SAMPLE
AIN
SAMPLE
()
sin
=
××
π
X
XINCLOCK
AIN
XINCLOCK
f
××
sin
π
×
()
3
_(
)
FIR Gain fAIN
Table 1. Bandwidth vs. Output Data Rate
OUTPUT DATA
RATE (ksps)
-3dB BANDWIDTH
(kHz)
-0.1dB BANDWIDTH
(kHz)
0.5
0.11
0.05
1
0.21
0.11
2
0.42
0.22
4
0.85
0.43
8
1.69
0.87
10
2.11
1.09
12
2.54
1.31
16
3.38
1.74
32
6.78
3.48
64
13.5
6.96
MAX11040K
fig02
fAIN/fSAMPLE
GAIN
(dB)
0.24
0.20
0.16
0.12
0.08
0.04
-5
-4
-3
-2
-1
0
1
-6
00.28
Figure 2. Digital Filter Response
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11040KGUU/GG8 | 制造商:Maxim Integrated Products 功能描述:24-BIT, 4-CHANNEL, SIMULTANEOUS-SAMPLING, CASCADABLE, SIGMA- - Rail/Tube |
| MAX11040KGUU/GH9 | 制造商:Maxim Integrated Products 功能描述:24-BIT, 4-CHANNEL, SIMULTANEOUS-SAMPLING, CASCADABLE, SIGMA- - Rail/Tube |
| MAX11040KGUU+ | 功能描述:模数转换器 - ADC 24Bit 4Ch Simul-Samp Cascadable Sig Delt RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX11040KGUU+T | 功能描述:模数转换器 - ADC 24Bit 4Ch Simul-Samp Cascadable Sig Delt RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX11041 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Wired Remote Controllers |
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